Displist: Add mikktspace tangent space generation for DL_INDEX3

This now matches the Mesh behavior. Surfaces and metaball implementation
are yet to be implemented.

1 files changed, 26 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_displist_tangent.h b/source/blender/blenkernel/BKE_displist_tangent.h
new file mode 100644
index 00000000000..3af7c513f67
--- /dev/null
+++ b/source/blender/blenkernel/BKE_displist_tangent.h
@@ -0,0 +1,26 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __BKE_DISPLIST_TANGENT_H__
+#define __BKE_DISPLIST_TANGENT_H__
+
+/** \file
+ * \ingroup bke
+ */
+
+void BKE_displist_tangent_calc(const DispList *dl, float (*fnormals)[3], float (**r_tangent)[4]);
+
+#endif /* __BKE_DISPLIST_TANGENT_H__ */